Home / 28,326.15-42,483.96-13,125.11

Finding the Fourth Proportional to 28,326.15, 42,483.96 and 13,125.11

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Solution

The fourth proportional to 28,326.15, 42,483.96 and 13,125.11 is: 19,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.15 : 42,483.96 = 13,125.11 : x
  2. Step 2: Convert to fraction form
    28,326.15/42,483.96 = 13,125.11/x
  3. Step 3: Cross multiply
    28,326.15x = 42,483.96 × 13,125.11
  4. Step 4: Simplify right side
    28,326.15x = 557,606,435.82
  5. Step 5: Solve for x
    x = 557,606,435.82/28,326.15
  6. Step 6: Final answer
    x = 19,685.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.